Dystopian world

As time went on and humans moved more in to the future, their lust for technology grew. It continued to grow to the point where they were not satisfied with anything they could invent.
They kept on inventing and making breakthroughs in technology until they finally made it. Their crowning achievement, their best and most useful invention, AI.
But no good thing ever came without a price, as humans found out. Their race was completely annihilated from existence by their very own inventions.
All except for one boy.
Can he save the world? Is this lost cause really worth fighting for? How will he bring back the now extinct human race?
Read on to find out.